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| author | Maxime Ripard <maxime@cerno.tech> | 2022-07-13 10:33:00 +0200 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2022-07-13 10:33:00 +0200 |
| commit | 4de395f2c632c31c575f72d49d4f4389c99dab68 (patch) | |
| tree | 29abd2c05c697f2d6bde19c10064c49246253828 /drivers/dma-buf | |
| parent | bbd60fee2d2166b2b8722cbad740996ef2e7ce40 (diff) | |
| parent | 0180290abb5ce5c870f84a00ffeda5802f641dce (diff) | |
| download | lwn-4de395f2c632c31c575f72d49d4f4389c99dab68.tar.gz lwn-4de395f2c632c31c575f72d49d4f4389c99dab68.zip | |
Merge drm/drm-next into drm-misc-next
I need to have some vc4 patches merged in -rc4, but drm-misc-next is
only at -rc2 for now.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'drivers/dma-buf')
| -rw-r--r-- | drivers/dma-buf/udmabuf.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c index 384cb3d06ff3..38e8767ec371 100644 --- a/drivers/dma-buf/udmabuf.c +++ b/drivers/dma-buf/udmabuf.c @@ -32,8 +32,11 @@ static vm_fault_t udmabuf_vm_fault(struct vm_fault *vmf) { struct vm_area_struct *vma = vmf->vma; struct udmabuf *ubuf = vma->vm_private_data; + pgoff_t pgoff = vmf->pgoff; - vmf->page = ubuf->pages[vmf->pgoff]; + if (pgoff >= ubuf->pagecount) + return VM_FAULT_SIGBUS; + vmf->page = ubuf->pages[pgoff]; get_page(vmf->page); return 0; } |